Apparatus for and method of making receptacles



M. GERSON.' APPARATUS FOR AND METHOD 0F MAKING RECEPTACLES.

APPLICATION FILED 1AN,3I| 1920.

` Patented June 14, 1921.

2 SHEETS-SHEET l.

IIII

, APPLICATION FILED `JAN. 3T, I920.

Patented J une 14 9 2 SHEETS-SHEET 2.

ATTODPIEY stares @ATENT @FC MORRIS' GERSON, OF DULUTH, MINNESOTA.

.APPARATUS FOR AND :METHOD 0F MAKING REGEPTACLES.

Specification of Letters Patent.

Patented June 14, 1921.

Application led January 31, 1920. Serial No. 355,434.

glhis invention relates to apparatus for Y and method of making receptacles, and has special reference to the manufacture of suit cases and like containers, preferably of paper, cloth, leather, et cetera, or various combinations of same.

The principal object is to make a more durable and serviceable receptacle of this character than is customary.

Another object is to provide a novel means and method whereby such a receptacle may be more cheaply and easily made than heretofore.

Still another object is to provide simple and practical means for making a receptacle having evenly formed rounded corners both internally and externally, this being for both durability and appearance.

Other. objects and advantages of the invention will appear in the further description thereof.

Referring to the accompanying drawings representing one practical' embodiment of the invention and n which' like reference characters indicate like parts:

Figure 1 is a perspective view of one of the molding receptacles in semi-opened position.

Fig. 2 is a central transverse sectional view through the closed mold having inclosed both portions of a suit casel under construction and the expansive bag.

Fig. 3 is a plan view of one corner of the intermediate section of the mold and a transverse sectional view of same.

Fig., 4 is-an under plan view of the expansible block upon which the sections of the suitcase or other receptacle being made, is formed. Fig. 5 is a side elevation of the forming block.

Fig. 6 isa plan of the plain block-supporting spider.

Fig. 7 is a vertical sectional view of the air and water supply connection to the expansi've bag.

Fig. 8 is a vertical section through the center of the expanding spider showing the two-blocks on the far side of the center in elevation.

1 represents the main body portion of the mold in which the like half of the receptacle to be made is eventually formed, and 2 represents the cooperative cover-holding portion, while 3 represents the intermediary section of the mold which is installed between the two main sections for forming the contracted marginal edge of the main body portion of the receptacle such as Va suit case body as it is being formed.

The intermediate section 3 has formed upon its opposite uppert and lower faces extending ribs or tongues 4 which are engaged within cooperative grooves formed about the engaging edges ofthe portions 1 and 2 of the mold the same being for the purpose of providing a positive and tight joint intermediate of the engaging portions of the receptacle. Said section 3 extends somewhat within the interior of the forming receptacle when assembled, said extensionbeing inclined as at 5 to form an inwardly inclined or contracted marginal edge on the body portion 6 of the receptacle eing formed as clearly illustrated at 7, Fig. 2, while the marginal edge of the cover portion 8 ofthe receptacle being formed abuts against the shoulder 9 of the section 3 when within the mold.

. l have shown the cover and body portion of the mold as being united upon one side by hinges indicated at 10 and which may be of any desired form for the purpose, the opposite side of the two sections having means for clamping and holdingl them securely together'such as coperative pairs of lugs 11 on the cover section and l12 on the body section, the latter pivotally carrying bolts 13 having thumb nuts 14 carried upon their extreme ends which will engage the upper faces of the lugs 11 when the"l bolts are swung into position forclamping the sections of the mold together, it being understood that the hinges10 are so applied to the sections of the mold as to provide space for the insertion of the intermediary section 3.` d d The expansive bag is indicated atr15 and Y is of the proper size and form to readily fit within the moldV after the receptacle being formed is placed therein where it is securel confined by the assembling of the mold. rectangular shaped hole 16 is formed centrally of the front wall of the body portlon l of the mold and throughwhich the pipe connection 17 to the expension bag 15 may beV inserted and screw threadedly attached to the bag which is provided with a registeringhole having a suitable bushing 18 thereinv for the purpose, or if preferred the pipe connection 17 may be applied to the bag prior to the latter being positioned 4Within the mold as being of soft and flexible struc-` ture the bag may be readily squeezed together to permit of the pipe connection or nipple 17 being extended through the opening 16 from the interior thereof and which preferred structure is shown in Flg. 7 of the drawings.y y

In the embodiment here illustrated in Fig. 7 I have shown Ia short piece of tubin 19 attached to the central inwardly extending nipple portion 20 of the pipe connection 17, the oice of which will be described later.

The bag 15 is made of any suitable rubber composition as indestructible as possible and capable of the necessary expansion for the purpose, itbeing found from practice that such'should have walls of considerable thickness and shaped as near to the internal measurements of the receptacle being formed as practical;

I haveV shown in Figs. 4, 5, 6 and 8 a cbnvenient form upon which the sections of the receptacle being made are initially shaped the same comprising four light substantially rectangularly shaped skeleton or hollow -blocks 21, they being positioned to form a square and thus expandibly held by the flat metal spider the body of which is illustrated at 22 and the diagonally extending. arms at 23. The under face of each block is provided with straps 24 or other suitable l means fixed thereto for slidable engagement .with the arms 23 of the spider, and said arms bein disposed at an angle of 45 degrees to t e body portion 22 of the spider will govern the movement of each block only at` such angle. Y

Fixed centrally of' and depending from thebody portion 22 of the spider is a pin or vsupporting member 25 which rotatably carries thereupon a disk 26 having a handle 27 extending radially therefrom and four arcuately shaped slots 28 therein, the. outermost end of each one of said slots opening through the peripheral edge of the disk and engag ing a downwardly protruding pin 29 rigldl ixed to the innermost strap 24 upon eaci block 21.` By this arrangement when lthe disk is rotated .in one directionall of the disk, while when the latter is moved in the oppositev direction they will be drawn t0- ward each othervas is obvious.

Below the disk 26 and screw-threadedly mounted 4upon the pin 25 is a hand nut 30 which may be adjusted to impinge the disk 26 for holding it locked in any desired position in relation to that of the blocks.

As a preferred form of support for the pin 25, I have shown it pivotally mounted within a normally horizontally disposed pivoted member 31 which is supported by an upright member 32 designed to be bolted to the table or work bench made use of in the employment of the device. This form of support permits of convenient manipulation of the device when being used.

Both the cover and body portions of the receptacle may be made or shaped upon this adjustable form as the blocks are provided with a recess as at 33 for the reception of the reinforcing metal band used in strengthening the edges of the cover [8 of the receptacle, the same being incorporated within the material of which the cover is composed and the blocks are also provided with a suitable recess or groove 34 for the reception of the wire reinforcement which is incorporated in the marginal edge of the body portion 6 of the receptacle being formed it also being incorporated within the material of which thc receptacle is formed. This incorporation of the reinforcing members is accomplished by first placing strips of cloth, leather or paper, as the case may be, over the channels or members are applied thereto thus permitting of said strips being wrapped about the mem,

bers and incorporated within the succeeding strips or pieces of which the receptacle is composed, this being preferably accomplished by alternate layers of suitable material such as paper, cloth, wire-netting and the like commonly used inthe construction of such receptacles and which are glued or pasted together forming a concrete structure which may be subsequently. softened by heat and permanently fixed or set during the further process of shaping in tle mold, previously described. p A

It is evident that when the different sections of the receptacle are built up in this manner upon the form, the blocks may be drawn together by proper manipulation of the disk 26 and the sections readlly removed therefrom and in fact any desired tension or manipulation of the blocks may be readily accomplished `to assist in the process of buildingup the sections thereupon. Then each pair of sections preparedin this manner is placed within the mold for final shaping as shown in Fig. 2 with the expansion bag 15 therein and the pipe 17 extending beyond the mold, said p ipe being provided with the inwardly protrudingnipple 20 forming communication withy the vpipe 19, as above described. About the nipple 20 and in the main body portion of the pipe 17 is formed a plurality of holes or passageways 44 extending longitudinally the vpipe and spaced from the central bore or passageway 35, thus providing separate channels of communica-- tion to the interior of the expansive bag, this specific structure being shownin Fig. 7 of the drawings.

As a convenient means for supply elements to the pipe 17 I have shown a hand nut 36 engaged in any desired manner back of the shoulder 37 adjacent the inner end of the pipe 39 whereby the nut may be turned for engaging the cooperatively screw threaded end 38 of the pipe 17 without becoming disengaged from the end of the pipe 39. The pipe 39 thus forms an extension. of the pipe 17 it being provided with the same number, and arrangement of passageways therein which register with the passageways 44 and 35 in the pipe 17. Upon. the outer end of the exf tension 39 is screw threadedly mounted a T coupling having the supply pipe 41 screw threadedly engaged in the opposite end thereof, said pipes 39 and 41 having reduced central nipples similar to the nipple 20 onv the pipe 17 and within the T 40, thus forming a continuous passageway through said T when. the pipes are screwed tightly together in the T and leaving a space about the abutting nipples which communicates with the passageways the bag to warm and soften the 44 in the pipe 39. Into the lateral connection of the T is screw threadedly attached a supply pipe connection 42 having any form of suitable relief or safety valve 43 installed therein to prevent abnormal pressure within the expansive bag and which valve may be set for certain predetermined pressures as is commonly practiced in such devices, the same forming no part of my present invention. In this manner I am enabled to supply two different elements to the interior of the expansive bag it being understood that the pipes 41 and 42 will be provided with suitable controlling valves not shown..

In Fig. 2 I have shown a modified form of supply connection to the interior of the bag and wherein but a single element may be supplied thereto as in the iinal shaping and fixing of some forms of material but a single element may be necessary, as for example air, while in the attachment shown in Fig. 7 it is designed to use both air and water the latter being introduced through the pipe 41 and the former through the pipe 42. In this event hot water is rst introduced into adhesive which abut each other substance used in the building up of the receptacle parts when they were shaped upon the form and after this has been accom plished to suiicient extent the water connection with the interior of the bag is opened and air issupplied under pressure to the pipe 42 thus forcing all of the water from the interior of the bag and herein appears the necessity of the bent pipe 19 the lower end of which is designed to terminate close to the bottom of the bag lso as to readily remove all water therefrom to permit of the air thoroughly drying out the latter and concluding the final forming ofthe receptacle, and the pressure within the bag, the air being heated or not as practice may prove essential. l

After suflicient heating has taken place by this means pressure may be maintained within the bag while the material of which the receptacle is formed is becoming permanently set, thus concluding the final forming thereof.

It is to be understood that various modilfications and changes in the specic structure here shown may be resorted to without departing from the spirit of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is: l

1. 'Ihe combination with a separable mold of the character described, one part being shaped internally to form the body portion of a suit case and the other part shaped to form the cover of the suit case, 'of an expandible bag insertible within the two parts prior to their being assembled with the respective parts of a suit case therein, means for securely holding said parts thus assembled and means for supplying an expansive and heating element to the interior of the bag.

2. The herein described method of making a receptacle comprising a plurality of parts composed of material susceptible of subsequent shaping and fixing, embodying first, the shaping of the parts upon a form, placing the shapes thus formed into av mold about an expansive core and thereby nally shaping and fixing the parts of the first mentioned receptacle.

3. rihe herein describedmethod of making a receptacle which when finished comprises a plurality of parts the latter being built up of laminatedmaterial susceptible of subsequent shaping and fixing, embodying irst, the building up of the parts of a form, placing ,the shapes thus formed into a mold and applying an expansive and heating element internally to said receptacle for the purpose described.

4. 'Ihe herein described methodof making a receptacle composed of af lurality of parts built up of material susceptible of subsequent/1 shaping and xing, embodying first, the shaping of the parts upon a form, placing the Shapes thus formed into mold, placing an expansive bag within the combined parts of the receptacle a p1 ing heat to the interor of the bag ansuhsequent pressure for the nal shaping land fixing of the receptacle.

In testimony whereof 1 hereunto ax my signature in the presence of twowitnesses.

MORRIS GERsoN. Witnesses H. L. LALIB-En'rs, S. GEO. STEVENS. 

